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. 2022 Mar 9;22(6):2136. doi: 10.3390/s22062136

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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A summary of the metadata elements needed to describe the collection of data from digital health technologies in a clinical trial setting. Underlined elements are application dependent and non-underlined items are application independent. The Patient ID and Experiment ID in the application-dependent metadata link to the application-dependent metadata. The “device” elements are required for the measurement device (e.g., a wearable) but also hub (might be a smartphone + app) that works with the wearable.